.Builder()
        .name("a")
        .value("b")
        .hostOnlyDomain("example.com")
        .expiresAt(Long.MAX_VALUE)
        .build()
    assertThat(cookie.toString()).isEqualTo("a=b; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/")
  }

  @Test fun builderExpiresAt() {
    val cookie =
      Cookie
        .Builder()
        .name("a")
        .value("b")
        .hostOnlyDomain("example.com")

      MockResponse(
        headers =
          headersOf(
            "Set-Cookie",
            "a=b; Expires=Thu, 01 Jan 1970 00:00:00 GMT",
            "Set-Cookie",
            "c=d; Expires=Fri, 02 Jan 1970 23:59:59 GMT; path=/bar; secure",
          ),
      ),
    )
    val cookieJar = RecordingCookieJar()
    client =
      client
        .newBuilder()
        .cookieJar(cookieJar)

	// type of s is string
	// s == a[i]
	g(i, s)
}

var key string
var val interface{}  // element type of m is assignable to val
m := map[string]int{"mon":0, "tue":1, "wed":2, "thu":3, "fri":4, "sat":5, "sun":6}
for key, val = range m {
	h(key, val)
}
// key == last map key encountered in iteration
// val == map[key]

var ch chan Work = producer()
for w := range ch {
	doWork(w)